How to transform a mobile phone into a projector DIY simple tutorial

The projector has many functions. It can replace the TV function. It can be used for video playback or training sessions, classroom teaching, and so on. But if it is not very necessary, there should not be a lot of people to buy such a kind of equipment. After all, the price is still very expensive. If you can do it yourself, then it is not cheap and practical. Today Xiaobian brings a tutorial on how to DIY a mobile phone into a projector. It is simple and practical! Come and learn together!

First, according to the calculated object distance in advance, the size of the box is designed, and the template of each part of the box is made by using the cardboard. The author's test found that the distance from the mirror to the Fresnel lens is about 7CM, so that a clear image of about 20 inches can be cast at a distance of 1.5.

First, use the prepared paper shell template, draw the outline of each part on the non-woven fabric, and cut it with scissors.

Dig a hole in the Fresnel lens to fix the lens (the textured side faces the inside of the box).

A stitching process is used between the two sides of the box and the box to provide a large killer-sewing machine.

Make a mirror bracket with balsa wood and a mobile phone at the bottom.

Make a border to the front of the Finn lens to support the box and sew it.

The box is basically shaped.

How to make it more beautiful? Use metal buttons - you need a hammer to get it.

Solved the lid problem, put the phone / mirror bracket into the box, you're done!

Look at the final look!

The projection box is ready, how to control the mobile phone by fixing the mobile phone to the bottom of the mobile phone? You can use a Bluetooth mouse if your phone and operating system support Bluetooth transmission.

Improved space

The first is the material of the box. If possible, use a more robust material, such as wood or machine glass, and lining it with a black shade.

Now because the size of the box is fixed, the object distance is not adjustable. If the front-end Fresnel mirror can move back and forth, you can adjust the size of the projected image. Of course, the clearest projection distance (image distance) depends on your movement.

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